Non-shorting photoflash lamp

Combustion – Projector and igniter for liquid or gelled fuel slug or rod,...

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F21K 502

Patent

active

039415554

ABSTRACT:
A glass support bead through which inlead wires extend in a miniature type of flash lamp is shaped to have sloping sides and a narrow ridge at the top extending from one to the other of the inlead wires, so that any unburned metal foil in a flashed lamp is not likely to accumulate on the top of the bead so as to cause an electrical short between the inlead wires.

REFERENCES:
patent: 2729960 (1956-01-01), Anderson
patent: 3116623 (1964-01-01), McCarty
patent: 3228216 (1966-01-01), Desauliniers et al.

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